GraphiadactyllisGraphiadactyllis is an extinct genus of ostracod belonging to the family Quasillitidae and order Platycopida. Specimens have been found in Mississippian to Permian beds in North America, Europe, and Australia.SpeciesGraphiadactyllis arkansana Girty 1910Graphiadactyllis australae Crespin 1945Graphiadactyllis deminuera Gründel 1975Graphiadactyllis jonesi Ferdinando 2001